Fig. 5From: A study of dust airborne particles collected by vehicular traffic from the atmosphere of southern megalopolis Mexico CitySEM analysis of CAFs samples. a CAF small section. b Individual fiber. c Different types of PM retained by CAFs fibers; pollen grain, fine particles, PM agglomerates. d PM agglomerate attached to a single CAF fiber. e PM agglomerate exhaust from combustion. f Dark spot on fiber surfaceBack to article page